"In 1492, Columbus sailed the ocean blue" . . . and made the first contact with the "Indians." For Native Americans, the world after 1492 would never be the same. This date marked the beginning of the long road of persecution and genocide of Native Americans, the continents indigenous people. Genocide was an important cause of the decline for many tribes.
"By conservative estimates, the population of the United states prior to European contact was greater than 12 million. Four centuries later, the count was reduced by 95% to 237 thousand.
"The difficult tasks we do immediately, the impossible takes a little longer"